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The Characteristics of Adsorption Treatment of Cr(VI)-containing Wastewater using Kudzu as the Adsorbent  

Seo, Myung-Soon (Department of Environmental Science and Engineering, Ewha Womans University)
Kim, Dong-Su (Department of Environmental Science and Engineering, Ewha Womans University)
Publication Information
Resources Recycling / v.17, no.3, 2008 , pp. 56-61 More about this Journal
Abstract
The kudzu has been investigated as an adsorbent for treatment of Cr(VI)-containing wastewater. The specific surface of kudzu was analyzed to be $189.91m^2/g$ and its major composition were found to be nitrogen and oxygen. It was observed that adsorption reaction for Cr(VI) on kudzu meets 1st order in kinetics and Langmuir Model in equilibrium. As the pH of wastewater was increased, the adsorbed amount of Cr(VI) onto kudzu was increased due to the pre-combination of $OH^-$ with adsorbent and the efficiency of adsorption was found to be 60% when real electroplating Cr(VI)-containing wastewater was applied.
Keywords
kudzu; adsorbent; Cr(VI)-containing wastewater;
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